Building construction



S. S. LEVY.

BUILDING CONSTRUCTION.

APPLICATION FILED OCT 30, 1920.

mwwm, Pa ented Aug-'1, 1922..

mmwmze. Samud Solomen Levy BY b v MKFWMALJW A TTORNEYS.

SUEL sonommr OF MATTAPAN, SACH'USETTS, ASSIGNQM "IQ SAM, is.

LE, 0F BQSTON, MASSACHUSEJLTF.

BUILDING UUNSTBUCTJIOFI.

specification of Letters Patent.

Patented Aug. ll, llh22.

application died @ctober a0, 1920. serial Ito. 9:20.587.

To all whom it may concern:

Be it own that I, SAMUEL So oMnN Law, a citizen of the United States,and resident of Mattapan, county of Sufiolk,

5 State of Massachusetts, have invented an provement in BuildingConstruction, of which the following description, in connec tion withthe accompanying drawing, is a specification, like characters on thedrawing representing like parts.

This invention relates to building construction and particularly tobuilding construction involving the use of blocks of cement orcementitious material. The object of the invention is to provide abuilding block oi novel term which can be readily laid up in the form ofa wall and which is constructed so that when the blocks are thus laid upthey can be readily secured together to sim ly by the insertion ofcement or motar in a igned grooves in adjacent blocks.

' lln order to give an understanding of my invention I haveillustratedin the drawings some selected embodiments thereof which willnow be described after which the novel features will be pointed out inthe appended claims.

1F ig. 1 is a perspective view of the corner of a wall formed ofbuilding blocks embodyingr my invention.

ig. 2 is a front view of a portion of a wall.

Fig. 3 is an end view of Fig. 2.

My improved building blocks are indicated at 7, in Fig. 1. Each block ismade of cement or some suitable cementitious substance and may have anydesired shape or size. Each block is formed on both its top lace and itsbottom face with a groove in ich is aligned with a corresponding groovein the block beneath or directly above when the wall is laid up. Thesegrooves are shown at 2 in Fig. 1, and each groove extends only partiallyacross the block, said groove terminating at a point near the front faceof the block but not extending clear to the front face. These grooves 1and 2 will preferably be dovetailed in shape and I will also preferablyemploy two grooves in each face, said grooves being so situated relativeto each other that the distance between the grooves on any face is twicethe distance between each groove and the end of the block. at ere thisarrangement of grooves extill dll

lib

lets the blocks may be placed one on the other so that they will break.joints as shown in Figs. 1 and 2 and in each case the grooves on thebottom of any block will come into alignment with the grooves on the topof the block beneath. After the building blocks have been laid up one onthe other to form the wall then motar or some other suitable cementorbinding material 4: is inserted into the aligned grooves as shown inFig. 1. When the mortar tar or cement t sets the blocks will be firmlylocked together thus making a rigid wall structure.

ll may, if desired, form each block with a rabbet 3 along either its topor its bottom edge at the front thereof. This rabbet may extend alongthe top edge merely or may also be formed along one of the verticaledges. Where this rabbeted structure is employed 75 it is my intentionto fillthe grooves formed by the rabbets with cement or motar 5, afterthe blocks are laid this giving the com pleted Wall the appearance shownin Fig. 2.

In Fig. 1, 6 indicates a foundation on so which the wall is laid.

ere the wall is built by laying the blocks so that they break joints itWlll be necessary to employ a block of one-half length as shown at 17 insome places. Thistt one-half length block however will have the grooves1 or 2 therein properly situated to come into alignment with the groovesin ph ii full length blocks when the latter are One advantage of myinvention is that a wall can be built up by simply placing the blocks oneach other and without the necessity of providing a bed of mortar orcement for each block as it is laid. Since the blocks are all madeperfectly true a wall can be built up perpendicularly by unskilled laborand after the blocks are laid up the grooves can be filled with cementor mortar.

I claim:

1. A building block of cement having on both the top and bottom facestwo dovetail grooves extending transversely from the inner face partway'only to the outer face, said grooves being placed so that thedistance between the grooves on any face is twice that between eachgroove and the end of the block, whereby when the blocks arelaid up in awall with the blocks in adjacent courses breaking joint the two grooves110 hit ltd

Mid

the top face of any block in one course are in alignment with thegrooves in the meetin ends of two blocks in the course above,

all of the grooves being open at the inner 5 face of the block so thatthe blocks may be laid up (11' and subsequently mortar or cement may beforced into the aligned grooves to bond the blocks together.

2. A wall formed of a plurality of build- 10 ing blocks laid one on theother with the blocks on adjacent courses breaking joint,

each block having on both the top and bottom faces two dove-tail grooveswhich are so situated that the distance between the 15 grooves is twicethe distance between each .aligned grooves and tying the blocks to- 25gether.

In testimony whereof,I have signed my name to this specification.

SAMUEL SOLOMEN LEVY.

